212430655770 has 48 divisors (see below), whose sum is σ = 538079228640. Its totient is φ = 53666689248.

The previous prime is 212430655727. The next prime is 212430655807. The reversal of 212430655770 is 77556034212.

212430655770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9796680 + ... + 9818339.

It is an arithmetic number, because the mean of its divisors is an integer number (11209983930).

Almost surely, 2^212430655770 is an apocalyptic number.

212430655770 is an abundant number, since it is smaller than the sum of its proper divisors (325648572870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212430655770 is a wasteful number, since it uses less digits than its factorization.

212430655770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19615067 (or 19615048 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

Adding to 212430655770 its reverse (77556034212), we get a palindrome (289986689982).

The spelling of 212430655770 in words is "two hundred twelve billion, four hundred thirty million, six hundred fifty-five thousand, seven hundred seventy".